I really like your web site, but I am using it 1st time for appropriate formulas with reliability and validity to calculate fat% of sum of 3,4,,5 and recent(common for all) skin fold sites. Let me know of any latest changes. Thanks.

Durnin-womersly formula on the chart it says sum of folds then below that it has a series of numbers from 5-200 in a sequence of 5's how do u know how many sums of fold u have when u r done found your measurements?

Stuck -> I don't understand your question. How can your result vary if in you enter the same numbers in to the same formula. Also, I think your biceps measurement is wrong. It is unlikely that you have 81 mm for biceps when you have 13 mm for other measurements.

I'm struggling to find density using the equation given for an assignment- I get different values each time I try and no idea which is right! Can anyone help?

My measurements are: 81.5mm (biceps); 25.8mm (triceps); 13.3 (subscap); and 12.6 (suprailiac).The equation given (female 20-29) is:density= 1.1599-(0.0717x log of sum of four sites)(I think we have to use this equation even if outdated)

I'd appreciate any suggestions as my answers at the moment are ranging from 1.021 to 1.076.Thanks.

Rachael ->Here is the explanation: Before the modification of the calculator all calculations were based on the formula for age 20-29, because this works best for an athletic population even though the person is above 29. However as this wasn't in agreement with the original source and possibly the calculator is also being used for a non-athletic population, the calculator was changed to use the age-differentiated formulas.

I want to measure body fat of adults. triceps, bicep and abdomen skinfold thicknesses have taken. Please give me an equation that can be measured body fat by using these all skinfold values or using any one of skinfold thickness. thanks

I really like your web site, but I couldn't use it for my health class because you had to use a model with BIG breasts and nipples. Freshman high school students just can't separate science and nudes. Let me know of any changes. Thanks.